What is a Mobile Engineer?
A mobile engineer builds native or cross-platform applications for iOS and Android devices. Mobile development is a distinct specialization from web engineering — native apps require deep platform knowledge, different performance characteristics, complex state management, and navigation through App Store review processes. At startups, mobile engineers are often hired when the product's core experience needs to live on a phone rather than a browser.
At what stage should you hire a Mobile Engineer?
When mobile is a core part of the product. For consumer apps, mobile engineers are often among the first hires. For B2B SaaS products, the mobile hire typically comes at Series A or B when enterprise customers start requesting a mobile companion app or when field use cases demand native capabilities (camera, GPS, push notifications, offline mode).
Common titles for this role
- Mobile Engineer
- iOS Engineer
- Android Engineer
- React Native Engineer
- Flutter Engineer
- Mobile Software Engineer
What does a Mobile Engineer do at a startup?
- Build and maintain native iOS (Swift) or Android (Kotlin) applications, or cross-platform apps using React Native or Flutter
- Implement mobile UI components, navigation, and gesture interactions
- Integrate with backend APIs and manage complex client-side state
- Optimize performance: startup time, memory usage, battery consumption
- Implement push notifications, deep linking, background fetch, and other platform-specific features
- Manage App Store and Google Play submission, review, and release processes
- Write unit and integration tests for mobile code
Key skills and qualifications
- Native iOS (Swift/Objective-C) or Android (Kotlin/Java) proficiency — or strong React Native/Flutter skills for cross-platform
- Experience shipping to the App Store or Google Play with significant user base
- Understanding of mobile UX conventions and platform HIG/Material Design guidelines
- API integration: REST, GraphQL, WebSockets from mobile clients
- Performance optimization and memory management for mobile constraints
- Familiarity with mobile CI/CD: Fastlane, Bitrise, GitHub Actions for mobile
Why hire your Mobile Engineer through RFS?
- Mobile is a specialized search — we distinguish between native and cross-platform depth and find candidates who match your stack
- 29-day average time to hire — mobile engineer searches benefit from our pre-vetted candidate pool
- 300+ placements at VC-backed companies including consumer and B2B mobile product companies
- Pre-vetted for shipped app experience: App Store or Play Store publications confirmed
- No upfront fees
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